Feed for sheet-slitting machines.



F. F. CLARK. FEED FOR SHEET SL1TT|NG MACHINES.

' APPLICATION FILED JAN. I8. I91!- 1fi32fi59 Patented July 3, 1917 2SHEETS-SHEET'I.

WITNESS-ES:

F. F. CLARK.

FEED FOR SHEET S'LlTTlNG MACHINES.

APPLlCATIOM FILED 1AN.I8. 19H- Patented July 3, 1917.

2 SHEETS-SHEET 2.

///A rZ// WITNESSES:

IN V IGNTOR (@f fiedii' 520/2 14;

m rim k .towarrl the front ,a ma" 1 will FREDEIGK. F. CLARK, GE VIE'QA,CALIFORNIA, ASSIGNOE T ALASKA FACKEBS RNIA, COBEOEATIOIJ 0E GALIELE-NIA.

I HEB?) SHEE'L ELITTENG IHACHIBIES.

Fapec (application filed January 1%, 191?.

1.1) all 'miwm, my (maxi-rm:

it known 0 u FREDRHW; l a citizen oi ll 2 il'llii'fl'l Zilalg: Alameda,in the 000.. Stale of ilalile i2 useful lmp're'vemenbs in i: Slittinglilaeh saes wlseh the liq a specification.

This inven ave inv need new 01 Sheetllowing 1 lie slitting ma 1: ic i infeed them mil-mi,aluieally E from a stack 01'? smith, :1 ll i 1-1 is tofeed them. by halal slow and minibeirsenie but irregular placing i inwith a con 117-11 Vs:

body blanks.

provide me 5a is; ii; 1501 she and eemprising ml Width horizon- .zlE iusual slitting mac hopper acl'jusi his anil iii-ran to l'ally in 3%stack of she knife edge (levices 1,0 sheet from sis hopper means atpermis single sl guiding incl a sheets after Papa Fig. 2 shia i's a l2-42 m l shows a s line of? Tl.

As herein shewn, the feeding mechanism con'ipiises a irame l0 having aheel-plate Til upon which are 'ilTCLll. at the outer e1 thereof. twostantlaicls adjiisl'able toward fillil 'li'nm ea-eh other forming theends of a hopper. in which i receivefl the sheets 13 in a horizontalpesi tion, piled one above the other Extencling .iioa of Letters Patent.

Fateiiteil July 3 Serial 1%. 142,999.

leng gi'tiuliiially ol the frame, above "the bedplale, an angle bar 1%,at me front and.

real sides, npen each of which is carried a pluz'alil-y (if eitieal bars15 spaeecl. apart and sapnm'ted adjustably thereon. each by means of avor'i ica screw 18, turnably mounted in the bent upper end of the barand screw-tlireadecl into the top flange of the adjacent angle bar 1%.

3 new 18, passive through a slot in flange of the angle'loar serves ppmtand guide the lower end of each bar 153. The lower ends of the bars 15,at the iii-mil; side, have inwardly bent lower endsflr forming: a ledgeto receive and suppurl; lhe front edges of the pile of sheets,

while the hats 15 at the rear. are cut Hll'fligllf at flit-ii lower.ends and beveled. at al corners to form gage b23138. The icle 0f thepile supported upon a 'pliimliy idlei's 20, each journaled in a holder21 detachably secured to the beclplate dllfl Wish which the sail-cl.bars eeepeizile to permita single sheet only to pass 'fi'om lhe hopper.

Sliilalie i n Tl OET', and greoves 22, the bed-plate. are two reciprocateaeli provided with one or aft .AJH llgEPl'GSSUl (logs or pawls 24:, to.gs and ml am-e 'lhe sheets after they left she llODPQl. TYHDSXOISB bars25 i connect the two recipreeabing bars a e apmi 'zhem are fixed JUN)separating (legs 2?: pivoted in a channel member 37, 111ml to the crossbars. Each separating has a tapered forward end and at its p carries aledger plate 2'? having, an aisle-rent final; wigs to engage andseparate 0 sheet from the stack. A elisin gly helils each (leg inpesiprepei: separation of a h channel bar 37 is an upimng flange 29secured to the m assist in supporting the pile in proper position andprevent 11g thereei. At intervals on the bedp oning rollers 30, eachjourlder Bl iletachably securedto 13 sheets which are of a cased iii.the same plane ile the same time fricas tien i'ec' At ii}: i the hopperancl in a, posithey emerge therefrom a pair of rollers 32, yieldinglysheets which are supported above the bedplate on the front carrying bars15, rollers ,20 and 30 and flanges 29. The gage bars 15 are adjustedrelatlve to the "rollers 20 to leave a space between sufficient topermit a pass from the hopper; he reciprocating bars 28 and dogs 26 aresingle sheet nly to actuated by suitable driving mechanism not show 7Upon each stroke of the reciprocating me'rnbers the lowermost sheet inthe stack is engaged and separated from the pile by the ledger plates27, on the dogs, .and moved thereby a distance sufficient to force thesheet into the rollers 32. Thereafter the reciprocating bars areretracted to engage with the next sheet and on the subsequent stroke thefirst sheet is engaged by the for wardly disposed dogs 24 and itsadvancementtoward the slitting machine assisted thereby. The mechanicaland automatic feeding of large metallic sheets to a slitting machine inthe manner described will double the capacity of the slitting machine ascompared with hand feeding. Also the sheets when so fed are certain tobe properly and evenly presented to the slitting machine, with theresult that the blanks for the cans are cut uniformly and squarely.

Various changes in the construction and arrangement of the several partsherein shown and described may be employed with -out departing from thespirit of my invention as disclosed in the appended claims.

Having thus described my invention, What I claim and desire to secure byLetters Patent is 1. In a sheet feeding mechanism, a hop- .per, a pairof reciprocating bars below the hopper having sheet advancing means,transverse bars connecting said reciprocating bars, members secured tothe transverse bars and arranged transverse of the latter, sheetseparating means connected to said members,

members connected to the transverse bars and extending transverselythereof to assist' in supporting the stack of blanks, and means toactuate said reciprocating bars.

2. In a sheet feeding mechanism, a hopper, a pair of reciprocating barsbelow the hopper having sheet advancing means, a cross-supportconnecting said bars, and sheet separating means formed independent ofand carried by the support and arranged between the sheet advancingmeans.

Ina sheet feeding mechanism, a hopper, a pair of reciprocatingbars belowthe hopper having sheet advancing means, a cross-support connecting saidbars, sheet separating means carried by the support and arranged betweenthe sheet advancing means, and supports for the stack of blanks carriedby said cross-support.

4. In a sheet feeding mechanism, a hopper, a i ciprocatin device beneaththe hopper, a plurality o spaced stack supporters carried by said.device, and sheet separators carriedby said device and arranged in thespaces between the stack supporters.

In a sheet feeding mechanism, a hopper, a reciprocating device includingspaced side bars,-a cross bar connecting said side stars, channeledmembers independent of the side bars and connected to the cross bar andarranged parallel to the side bars, and separating dogs pivoted in thechannels of said channel members.

6. In a sheet feeding mechanism, a. hop per, a reciprocating deviceincluding spaced side bars, a cross bar connecting said side bars,channeled members connected to the cross bar and arranged parallel tothe side bars, separating dogs pivoted in the channels of said channeledmembers, and vertically arranged flanges adjacent the channeled membersto support the stack'and carried by the cross bar.

7. I11 a sheetfeeding mechanism, a hopper having an outlet including aroller having its top are forming the bottom of the outlet, and arrangedto support the bottom of the stack within the hopper and at one side ofthe stack, a pair of cooperating superposed feed-out rollers havingtheir confronting parts alined with the top are of said roller, acarrier, means on the carrier to separate the sheets, spaced upwardlyextending flanges on the carrier and movable therewith in advance of theseparatormea-ns for supporting a separated sheet and for positivelyguiding and holding same over the hopper roller and between thefeedingout rollers, and means on the carrier in ad vance of theseparator means and movable with the carrier to advance the sheets pastthe feeding-out rollers after the sheets have left the latter. 8. Inasheet feeding mechanism, a hopper having an outlet, including meansarranged to support the bottom of the stack within the hopper and at oneside of the stack, feeding-out rollers in front of the hopper arrangedwith their confronting parts in alinement with said stack supportingmeans, a carrier, means on the carrier to separate the sheets, means onthe carrier movable therewith in advance of the separator means forsupporting a separated sheet and for positively guiding and hold ingsame over the hopper means and be-, tween the feeding-out rollers, andmeans movable with the carrier for advancing the angle-bars havingvertical webs confronting each other and tops extending outwardly,

vertical bars engaged 'withthe vertical web A of one angle-bar andhaving their lower ends formed to support one side of the stack,vertical gage bars engaged with the vertical web of the other angle-bar,means cooperating with the lower ends of the gage bars to form a hopperoutlet, screws connected to the vertical bars and the tops of theangle-bars to vertically adjust the vertical bars, tical bars to thevertical webs of the anglebars in all adjustments of the vertical bars,said last named means being accessible for manipulation from beneath thetops of the angle-irons andto the rear ofthe vertical webs of the angleirons. i

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

. I FRED F. CLARK. Witnesses:

FRANCES V. COLE,- W. W. HEALEY.

and means for clamping the ver-

